Re: Debugging with NMI

Bryn Paul Arnold Jones (bpaj@gytha.demon.co.uk)
Tue, 13 Jul 1999 22:27:35 +0100 (GMT)


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On Tue, 13 Jul 1999 borislav@ensim.com wrote:

> In article <fa.e66dv0v.1ch8vqe@ifi.uio.no> you wrote:
> > On an ISA bus machine, if you short out the A1 and B1 pins of an ISA
> > slot you will generate an NMI to the CPU. This interrupts even a
>
> I tried this and nothing happened (the machine is still up, no extra
> output, cat /proc/interrupts says NMI: 0). I'm sure I used the correct
> pins and the right type of paper clip. Any idea what else I might be
> doing wrong?
>

Your problem is a plug'n'play(tm) paperclip, luckily almost all the
plug'n'play(tm) material is in the surface of the wire. All you need to
do is sandpaper the paperclip to remove the pnp coating and try again.

The totally plug'n'play paperclips are easy to spot as after a few seconds
of vigorous rubbing, a large ammount of the paperclip will have worn away.

Please note any "rough hard surface"(tm) will do, as no manufactures of
rough hard surfaces have managed to manufacture a pnp surface coating
which is hard wearing enough to withstand the normal wear and tear which
rough hard surfaces are subject to, and as we know to make the whole
"rough hard surface"(tm) pnp is still too expensive.

Bryn
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